This new F-18 Mallet putter is the best combination of Zero Torque, High Moment of Inertia, and perfect early roll that you will ever have in your hands.  (THIS IS THE PUTTER I CURRENTLY GAME AND I MAKE ALL THESE) It comes with 5 adjustable weights in the sole, Very long bright white sightline that is improved with a T-BAR line for ease of lining up those 5 footers.  The Tri-Planes sole makes putting from off the green simple.  New Blue finish and the Stability Tour Shaft is available at $245 extra.  
It is available with the Stability Tour Shaft ($245 extra) for more consistent longer putts due to much less torque.  Comes with a 1.5 Flat Top grip and magnet headcover.  $475.00 free shipping.